Hoffman Apparatus shown on the
right is normally used for water electrolysis. Hydrogen and oxygen
gases formed in tubes can easily be measured because both tubes
are graduated.

Water analysis can also be
performed with less complex devices that you can assemble at home
or at your school lab.

You perform a water analysis
experiment to find the answer to any of the following questions:
What gas will be produced in an anode? What gas will be produced in
a cathode?
What is the ratio of produced gases? How do ionic compounds help
the electrolysis of water? How does electrolysis of water affect
the pH of water in or around electrodes?

Project
description:
In this project you will design and perform a simple water electrolysis
using the material that you can find at home or obtain locally. You will
then analyze the results and draw a conclusion for each of the questions
proposed above. This is a chemistry project in which you will need some
chemicals, test tubes and beakers. Please make sure you can obtain such
chemicals before choosing this project. Also consult with your teacher
to make sure it is acceptable as your project. Chemicals you need are
small amounts of Magnesium Sulfate, Sodium Hydroxide, Hydrochloric Acid,
and pH indicator paper.

Details
of this project:
More details or support for this project is available for the
members of ScienceProject.com web site. Material
needed for experiments may be
available locally or purchased online at MiniScience.com.